Wrench.



, PATENTED MAY 31, 1909'. 1 v J. sgusa.

- WRENCH. Y

No. '7e1,41 1. p I

f UNITED "STATES P TENT OFFICE.

Patented May 31, 1904.

JOSEPH, SAUER, or MILLVALE, PENNSYLVANIA. v

WRENCH.

' SPECIFICATION forming'part of Letters Patent No. 761,411, dated May 31, 1904..

Application filed November 20,1903. SerialNo. 181.950. "(N model.) a

To all whom/ it mag concern.-

Belt known that I, JOSEPH Sauna, a citizen of the United States 'of America, residing at Millvale, in the county of Alleghenyv and State of Pennsylvania, have invented certain new .and useful Improvements in'Wrenches, of

which the following is a'specification, reference being bad therein to the accompanying drawings. r v

This invention relates to certain new and useful improvements in wrenches, the primary object of the invention being toprovide novel means for the rapid adjustment of the movable jaw and the secure holding ofthe said jaw in its adjusted position.

Briefly described, the invention comprises a wrench-shank provided on its outer end with a rigid jawand which Wrench-shank is slotted throughout the major portion of its length, forming a spring-bar which lies parallel with the wrench-shank and has teeth onone face;

The free end of this bar extends into the recess provided therefor in the rigid jaw of the wrench and is at. all times under the tension of the spring arranged in said recess. The movable jaw is mounted on the wrench-shank and has means for engagement with teeth on the wrench-shank proper and also with teeth on the spring bar.

, vided, which carries acamadapted to be inserted in the slot in'the spring-bar and wrenchshank proper for forcing the spring-bar outwardly, and thereby securely locking'the movable jaw in its adjusted position.

All of the above construction, togetherfwith such other details as enter into my invention,

will be hereinafter more fully described, and specifically pointed out in the claims.

- In describing the invention in detail reference is had to the accompanying drawings, forming a part of this application, and wherein like numerals of reference indicate like parts throughout the several views, in which Figure 1 is a plan view of a wrench constructed in accordancewith my invention, the

rigid jaw being partly broken away. Fig. 2

is a longitudinal sectional view of the wrench.

Fig. 3 is a detached detail perspective. view A pivoted dog is pro-v spring-bar.

Fig. 5 is. a transverse vertical sectional View through the wrench-shank.

In the accompanying drawings, 1 indicates the wrerich-shank,.to the one end of which is secured in any desirable manner a suitable handle 2 and on the outer end of which shank a rigid jaw 3 is carried. This wrench-shank is provided with 'a longitudinal slot 4, extending from the outer end of the shank to apoint near its inner end, forming a spring-bar 5, the

outer end of which bar extends into therecess 6, provided therefor in the inner face of the rigid jaw 3, and 'in which recess between the spring-bar and the end of the recess is arranged a spring 7, the tension of which is always against the bar 5. This bar 5 is pro vided with teeth 8 on its rear face, while the wrench-shank is provided on its outer face .with teeth 9. Lugs or stops 1O 11 are provided on the wrench-shank and spring-bar, re-

spectively, near the inner end thereof, to limit the inward movement of the movable jaw. The movable jaw 12 is mounted on the wrenchshank and spring-bar and has projecting into the opening which receives the wrench-shank and bar the teeth 14; 15, which engage with the teeth 9 on the wrench-shank, and on the outside wall of said opening is provided with teeth 1617, which engage with teeth 8 of the Means is provided for locking the movable jaw'in its adjusted position, and

to this end Iprovide the said movable jaw on its one face with a boss 18, bifurcated to form a pair of lugs-19, in which is pivoted a locking-lever by means of the pivot-pin 21, en-

gaging the lugs 19 and the eye 22, carried by said lever. This lever also carries a'cam or wedge 23, which is adapted to enter the slot 4, whereby to force the bar 5 outwardly. When the lever 20 is raised so; as to move the cam or Wedge 23 out of the slot 4, as seen in dotted lines in Fig. 2, the movable jaw 12 is free to be forced ineither direction on the wrench-shank, and when the jaw has been moved to. its desired position the lever 20 is closed toward the shank, thus inserting cam or wedge 23 in the slot and firmly holding the jaw 12 in its adjusted position.

In the practice of the invention it will be evident that various slight changes maybe made in the details of construction without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a wrench of the type described, a wrench-shank having a handle at its inner end and a rigid jaw at its outer end, said rigid jaw provided on its inner face with a recess, a spring-bar carried by the wrench and having its outer end extending into said recess in the jaw, a movable jaw mounted on the wrenchshank and spring-bar, and a locking-lever carried by the movable jaw and having a cam adapted to be inserted between the shank and the spring-bar for locking the movable jaw, substantially as described.

2. In a wrench, awrench-shank provided at its outer end with a rigid jaw having a recess, a spring-bar carried by the shank with its free end extending into said recess, a spring in said recess bearing against said spring-bar, a movable jaw mounted on the shank and on said spring-bar, a locking-lever pivoted to said jaw, and a cam or wedge carried by said lockinglever to be engaged between the shank and the spring-bar, as and for the purpose described.

3. In a wrench, a wrench-shank provided means for engagement between the shank spring-bar for locking theinovable jaw in adjusted position, substantially as described.

4. In a wrench, a shank divided longitudinally, in combination with fixed and movable jaws, said shank passing through the movable jaw, and a cam passing between the divided portions of said shank.

5. In a wrench, a shank formed with a longitudinal slot extending through one 01 its ends, a jaw slidable thereon, and an expanding means carried by said jaw and passing through said slot, substantially as and for the purpose specified.

In testimony whereof I afiix my signature in the presence of two witnesses.

JOSEPH SAUER.

itncsses:

A. M. VVILsoN, E. E. POTTER. 

